National Weather Service United States Department of Commerce

Heavy Mountain Snow and High Winds Shifts into the Intermountain West and Plains

A storm system will move bring heavy mountain snow and high winds to the Intermountain West and the Plains. Locally heavy rain from a nearly stalled front on the southern California coastline could cause flash flooding. A new storm will drop south along the West Coast and is expected to bring additional heavy mountain snow, especially, in California. Read More >

The January 2022 climate summaries for Big Piney, Buffalo, Casper, Greybull, Lake Yellowstone, Lander, Riverton, Rock Springs, and Worland are now available online.

Big Piney




Lake Yellowstone



Rock Springs


Monthly Summaries

The month of January across Wyoming saw the average temperatures come in at above normal, with a couple of sites with below normal numbers. Precipitation for the month was mostly below normal, with just Casper and Lander above. Casper did see record snow of 6.8 inches on the 21st, and Lander had record liquid (melted snow) on the 5th. Both of these records are significant due to their long period of record. The early days of the month did see the coldest temperatures with the 1st and the 6th being the favorites. There was a front on the 3rd and 4th that brought some snow to the west, with Winter Weather Advisories issued. There were also strong winds for the south and east with this front. Buffalo hit 69 mph on the 4th, which is the highest speed for the month of all the sites. The 5th and 6th saw another system with snowiest and wettest days in the climate sites in central areas.

There were a series of small fronts crossing the state throughout the month, with a trace to a few inches of snow each time, mainly east of the divide. That snow did not hang around too long with most of them. A front on the 20th and 21st gave Casper a decent snow day, and one on the 27th dropped a few inches on Lander. The month of January ended on a high note…meaning it was a very windy day with High Winds across the state. Riverton and Worland had their highest gusts on the 31st. The temperatures also were above normal for the last week of January.

Check  the CLMs for more specifics on daily records set at the various locations. See the links above for details for individual sites or click here for Water Year Precipitation summaries for more locations.

If you would like additional, or more in-depth climate information, please refer to our Climate Page. From the Riverton Home Page, hover over the "Climate and Past Weather" tab, and select the "Local" option. Under the "Observed Weather" tab you can then find the Daily Climate Report (CLI), the Preliminary Monthly Climate Data (CF6), the Monthly Weather Summary (CLM), and the Regional Summary (RTP). The Daily Climate Report will have the weather data for the day (from midnight to 1159 pm). The Monthly Climate Data (CF6) will have this data for each day of the month, compiling all the daily data into one form. The Regional Summary will have temperature and precipitation data for various locations across the state, updated 3 times a day.